Gravity Perks is a collection of premium add-ons for Gravity Forms, enhancing its functionality with features like conditional logic, form field customization, and advanced integrations. It includes various tools to improve form-building processes, from better user experience features to integrations with popular services. Gravity Perks is available through a subscription that grants access to all the add-ons. Some third-party sites may offer Gravity Perks under the GPL (General Public License), but these versions often do not include official support, updates, or access to the full range of features.